Hi, I tried to follow the documentation at https://www.qemu.org/docs/master/system/devices/net.html#using-passt-as-the-user-mode-network-stack and have a slight issue which might be worth fixing. When I tried using -netdev passt I got this error message: File '/tmp/passt-GURUH3.pid' did not contain a valid PID.
It seems to only happen with -sandbox on so I guess the combination hasn't been tested yet. Does it make sense to change something in QEMU (eg. using -f instead of pid file) to allow using both options at the same time?
